The 2008 Civic Si is powered by a 2.0-liter inline-4 engine, the K20Z3, producing about 197 horsepower and 139 lb-ft of torque.
Built for performance within the eighth-generation Civic lineup, the Si uses Honda’s i-VTEC technology to blend everyday efficiency with sporty high-end power. It comes exclusively with a six-speed manual transmission and a high-revving nature that motivates the Si’s sporty character on winding roads and highways alike.
Engine design and specifications
Key technical details of the 2008 Civic Si engine are listed below.
- Engine code: K20Z3
- Displacement: 2.0 liters (inline-4)
- Valvetrain: DOHC i-VTEC, 4 valves per cylinder
- Horsepower: 197 hp at 7,000 rpm
- Peak torque: 139 lb-ft at 6,500 rpm
- Redline: around 8,000 rpm
- Transmission: 6-speed manual
In practical terms, this engine setup gives the Civic Si a high-revving character and strong top-end performance, making it feel particularly eager during spirited driving while still functioning well for daily use.
What it means for driving and performance
The combination of the K20Z3 with i-VTEC and a six-speed manual contributes to a notably engaging driving experience. The engine’s torque comes on strongly as revs rise, and the 6-speed gearbox allows precise control in corners and on open highways. This setup helped define the Si as Honda’s compact-performance option within its generation, appealing to enthusiasts who value a connected, driver-focused feel.
Engineering context
The K-series family, including the K20Z3, was Honda’s move toward higher specific output and efficiency. In the 2008 Civic Si, the partnership of high-revving power, responsive throttle, and a light, rigid chassis contributed to its reputation as a practical performance hatchback.
Summary
The engine powering the 2008 Civic Si is a 2.0-liter inline-4, K20Z3, with i-VTEC, delivering 197 horsepower and 139 lb-ft of torque, paired with a 6-speed manual transmission. This combination defined the Si’s sporty, engaging character within the eighth-generation Civic lineup.